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CN102160268A - Stepping actuator - Google Patents

Stepping actuator Download PDF

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Publication number
CN102160268A
CN102160268A CN2008801308737A CN200880130873A CN102160268A CN 102160268 A CN102160268 A CN 102160268A CN 2008801308737 A CN2008801308737 A CN 2008801308737A CN 200880130873 A CN200880130873 A CN 200880130873A CN 102160268 A CN102160268 A CN 102160268A
Authority
CN
China
Prior art keywords
coupled
step actuator
bearing
wheel rim
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2008801308737A
Other languages
Chinese (zh)
Other versions
CN102160268B (en
Inventor
李洪坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Innotek Co Ltd
Original Assignee
LG Innotek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Priority to CN201710866722.9A priority Critical patent/CN107546952B/en
Priority to CN201510205203.9A priority patent/CN104868691B/en
Publication of CN102160268A publication Critical patent/CN102160268A/en
Application granted granted Critical
Publication of CN102160268B publication Critical patent/CN102160268B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/24—Structural association with auxiliary mechanical devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2031—Actuator casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18664—Shaft moves through rotary drive means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18688—Limit stop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)
  • Motor Or Generator Frames (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

Disclosed is a step actuator including a housing; a stator installed in the housing; a rotor positioned radially inward from the stator, the rotor rotating and protruding from one side of the housing; a bearing installed at one side of the housing so as to be coupled with the rotor; a bearing cover coupled with one side of the housing to restrain movement of the bearing; a screw member coupled with the rotor to linearly move according to rotation of the rotor; and a mounting member coupled to the bearing cover to support the screw member.

Description

Step actuator
Technical field
Execution mode relates to a kind of step actuator.
Background technology
Step actuator comprises rotor and stator.Described step actuator is according to the linear driving shaft of the rotation of rotor.
For example, this step actuator is connected in the member of the reflecting element of powered vehicle front light system, so that change illumination direction.In addition, this step actuator changes the rotational motion of rotor into linear movement, and therefore, this step actuator can be applied to multiple electricity and the mechanical device that needs line movement.
Summary of the invention
Technical problem
Execution mode provides a kind of step actuator with novel structure.
Execution mode provides a kind of step actuator, and it comprises the bearing cap that is used to retrain bearing, and is coupled to the installation component of this bearing cap with the support thread member.
Execution mode provides a kind of step actuator, and it comprises the bearing cap that is coupled to installation component removably.
Execution mode provides a kind of step actuator, and it comprises the bearing cap that can easily be coupled to installation component.
Technical scheme
A kind of step actuator according to a kind of execution mode comprises: shell; Stator, described stator are installed in the described shell; Rotor, described rotor is radially inwardly placed from described stator, described rotor rotation and stretch out from a side of described shell; Bearing, described Bearing Installation in a side of described shell so that be coupled with described rotor; Bearing cap, a side of described bearing cap and described shell are coupled to retrain the motion of described bearing; Screw member, described screw member and described rotor are coupled with the rotation according to described rotor and move linearly; And installation component, described installation component is coupled to described bearing cap to support described screw member.
A kind of step actuator according to a kind of execution mode comprises: shell; Stator, described stator are installed in the described shell; Rotor, described rotor is radially inwardly placed from described stator, described rotor rotation and stretch out from a side of described shell; Bearing, described Bearing Installation in a side of described shell so that be coupled with described rotor; Bearing cap, a side of described bearing cap and described shell are coupled to retrain the motion of described bearing; Screw member, described screw member and described rotor are coupled with according to the rotation of described rotor linear movement on first direction and the second direction opposite with described first direction; And installation component, described installation component is coupled to described bearing cap removably to support described screw member.
Beneficial effect
Present embodiment can provide a kind of step actuator with novel structure.
Present embodiment can provide a kind of step actuator, and it comprises the bearing cap that is used to retrain bearing, and is coupled to the installation component of described bearing cap with the support thread member.
Present embodiment can provide a kind of step actuator, and it comprises the bearing cap that is coupled to installation component removably.
Present embodiment can provide a kind of step actuator, and it comprises the bearing cap that can easily be coupled to installation component.
Description of drawings
Fig. 1 shows the stereogram according to a kind of step actuator of execution mode;
Fig. 2 shows the sectional view according to a kind of step actuator of execution mode;
Fig. 3 and Fig. 4 show the exploded perspective view according to a kind of step actuator of execution mode;
Fig. 5 shows in according to a kind of step actuator of execution mode the stereogram of second shell that bearing is supported from first direction;
Fig. 6 and Fig. 7 show the view according to the bearing cap of the step actuator of another kind of execution mode respectively; And
The stereogram that Fig. 8 to Figure 12 shows the structure between bearing cap and the installation component and is coupled relation.
Embodiment
Hereinafter, with the step actuator that is described in detail with reference to the attached drawings according to execution mode.
In the accompanying drawings, illustrate for convenience of explanation or clearly, exaggerated, omitted or simplified the size and the thickness of element.In addition, in practice, to that indicated in the drawings the varying in size of big I of these elements.
Fig. 1 shows the stereogram according to a kind of step actuator of execution mode, and Fig. 2 shows the sectional view according to a kind of step actuator of execution mode, and Fig. 3 and Fig. 4 show the exploded perspective view according to a kind of step actuator of execution mode.
Referring to figs. 1 to Fig. 4, comprise according to a kind of step actuator of execution mode: stator; Rotor, it is rotating simultaneously with described stator is interactional; And screw member 10, itself and described rotor be coupled with according to the forward of described rotor and backward rotation first and second direction on linear reciprocal movement.
Described stator comprises first yoke 150 and second yoke 160 that is installed between first shell 110 and second shell 120, and first bobbin 130 and second bobbin 140.
Rotor comprises: magnet 30, and magnet 30 is installed in the stator, to rotate simultaneously with described stator is interactional; And the nut member 20 that is coupled to magnet 30.Screw member 10 is coupled each other with the form of nut member 20 with bolt-nut assembly.Therefore, if nut member 20 rotates, screw member 10 is with regard to linear movement.
At length, first bobbin 130 and second bobbin 140 are installed between first shell 110 and second shell 120 in the space that forms, and first yoke 150 and second yoke 160 are arranged between first bobbin 130 and second bobbin 140.
In addition, magnet 30, nut member 20 and screw member 10 radially inwardly are arranged between first bobbin 130 and second bobbin 140.
In addition, bearing 40, bearing cap 50 and installation component 60 are installed in a side of second shell 120.
In more detail, when working according to the step actuator of present embodiment, screw member 10 is along axis linear reciprocal movement on reciprocal first and second direction of screw member 10.
In addition, first end of screw member 10 is inserted in the protruded tube 132 of first bobbin 130, and second end of screw member 10 passes the protuberance 61 of installation component 60.Joint 70 is coupled to second end of screw member 10.
Screw thread 11 is formed on the outer surface of first end of screw member 10, and stop part 12 is arranged between second end of screw thread 11 and screw member 10.
The screw thread 11 of screw member 10 is coupled with screw thread 21 on the inner surface that is formed on nut member 20.Therefore, when nut member 20 rotated, screw member 10 moved upward at first direction or second party.
Stop part 12 motions of constraint screw member 10 on second direction.When screw member 10 when second party moves upward, the protuberance 61 of installation component 60 stops stop part 12, thereby screw member 10 can not be moved upward in second party again.In addition, stop portions 133 is located at the first end place of the protruded tube 132 of first bobbin 130, so that the motion of constraint screw member 10 on first direction.
The diameter minimum of the through hole 62 of protuberance 61 that can be by making installation component 60 is so that the screw thread 11 of screw member 10 can not retrain the motion of screw member 10 on second direction by the protuberance 61 of installation component 60.In addition, the diameter minimum of first end that can be by making protruded tube 132 retrains the motion of screw member 10 on first direction so that the screw thread 11 of screw member 10 can not pass through protruded tube 132.Therefore, can according to application choice stop portions 133 and stop part 12 be set.
Simultaneously, as mentioned above, by passing installation component 60, screw member 10 can first or second direction on linear movement, but the rotation of screw member 10 suffers restraints.Just, retrain the rotation of screw members 10 by the protuberance 61 of installation component 60.
For example, second end-grain cutting of screw member 10 is become " D " shape, and the shape of the through hole 62 of installation component 60 is corresponding with the cross sectional shape of second end of screw member 10.
Because screw member 10 can not rotate, therefore when nut member 20 rotations that are coupled with screw member 10, screw member 10 first or second direction on linear movement.
Nut member 20 is inserted in the magnet 30, and second end 22 of nut member 20 protrudes upward in second party by passing magnet 30.On the external peripheral surface of nut member 20, be provided with key 23.Key 23 in axial direction extends and is coupled with the keyhole 31 that is formed in the magnet 30.Therefore, nut member 20 rotates with magnet 30.
Second end 22 of nut member 20 is coupled with the inner ring of bearing 40.Therefore, nut member 20 can freely rotate in by bearing 40 supportings.
In addition, the screw thread 21 that is formed in the inner surface of nut member 20 is coupled with screw thread 11 on the outer surface that is formed on screw member 10.In addition, the protruded tube 132 of the nut member 20 and first bobbin 130 is coupled, and is supported in the mode of rotating by the protruded tube 132 of first bobbin 130.Just, the inner surface of nut member 20 contacts with the outer surface of protruded tube 132.
Magnet 30 can comprise the permanent magnet with the N utmost point and S utmost point, and the described N utmost point and the S utmost point be arranged alternate along the circumferential direction at regular intervals.As mentioned above, because nut member 20 is inserted in the magnet 30, therefore when magnet 30 rotated, nut member 20 also rotated.
Simultaneously, second end 32 of magnet 30 protrudes upward so that contact with the inner ring of bearing 40 in second party.Therefore, because second end 32 of magnet 30, magnet 30 can rotate smoothly and not contact with the outer ring of bearing 40.
Second bobbin 140 that has first bobbin 130 of first coil 131 and have second coil 141 is installed around magnet 30.In addition, first yoke 150 and second yoke 160 are arranged between first bobbin 130 and second bobbin 140.
First bobbin 130 comprises: first coil twines part 134, the first coils 131 and twines part 134 windings around first coil; And the first terminal part 135 that is electrically connected on first coil 131.In addition, second bobbin 140 comprises: second coil twines part 144, the second coils 141 and twines part 144 windings around second coil; And second terminal part 145 that is electrically connected on second coil 141.
As mentioned above, first bobbin 130 has protruded tube 132 and slit 136, and screw member 10 is inserted in the protruded tube 132, and the 3rd tooth 111 of first shell 110 is inserted in the slit 136.First bobbin 130 is towards magnet 30 and nut member 20.First bobbin 130 have groove 134 so that when magnet 30 and nut member 20 first or second party when moving upward, reduce the friction between first bobbin 130, magnet 30 and the nut member 20.
First yoke 150 comprises: first body 151 with annular shape; Stretch out so that be arranged in first tooth 152 between first bobbin 130 and the magnet 30 to first shell 110 from the inner circumferential surface of first body 151; And first earth terminal 153 that is used to make first body, 151 ground connection.In addition, second yoke 160 comprises: second body 161 with annular shape; Stretch out so that be arranged in second tooth 162 between second bobbin 140 and the magnet 30 to second shell 120 from the inner circumferential surface of second body 161; And second earth terminal 163 that is used to make second body, 161 ground connection.
Simultaneously, first shell 110 is provided with the 3rd tooth 111, the three teeth 111 and stretches out so that be arranged between first bobbin 130 and the magnet 30 by the slit 136 that passes first bobbin 130 to second shell 120.The 3rd tooth 111 and first tooth 152 are along the circumferential section arranged alternate of magnet 30.
First shell 110 has: the first wheel rim part 112, and its cylinder part from first shell 110 radially inwardly stretches out; And the 3rd tooth 111, it extends upward in second party from the first wheel rim part 112.First opening 113 is limited by the first wheel rim part 112, and a side of first bobbin 130 is inserted in first opening 113.
In addition, second shell 120 has the 4th tooth 121, and it stretches out so that be arranged between second bobbin 140 and the magnet 30 to first shell 110.The 4th tooth 121 and second tooth 162 are along the circumferential section arranged alternate of magnet 30.
Second shell 120 has: the second wheel rim part 122, and its cylinder part from second shell 120 radially inwardly stretches out; And the 4th tooth 121, it extends upward in first party from the second wheel rim part 122.
Simultaneously, in first shell 110, form first cutting part 114 by the predetermined portions that cuts the first wheel rim part 112, and, second cutting part 124 in second shell 120, formed by the predetermined portions that cuts the second wheel rim part 122.The first wheel rim part 114 and the second wheel rim part 124 form opening.Be formed on the first terminal part 135 in first bobbin 130, be formed on first earth terminal 153 in first yoke 150, be formed on second earth terminal 163 in second yoke 160 and second terminal part 145 that is formed in second bobbin 140 protruding by the opening that limits by the first wheel rim part 114 and the second wheel rim part 124.
Bearing 40 is installed in the second end place of second shell 120, and bearing cap 50 is made as and is used for block bearing 40.Just, bearing cap 50 is coupled to second shell 120 with constraint bearing 40.For example, bearing cap 50 can be coupled to second shell 120 by spot welding or Laser Welding.
As mentioned above, the inner ring of bearing 40 contacts with second end 22 of nut member 20, and is supported by second end 22 of nut member 20.
In addition, the second wheel rim part, 122 motions of constraint bearing 40 on first direction of second shell 120, and bearing cap 50 motions of constraint bearing 40 on second direction.
The diameter of second opening 123 that is limited by the second wheel rim part 122 is greater than the diameter of magnet 30 and less than the diameter of bearing 40.Therefore, can not rub between the magnet 30 and second shell 120, and, the motion of bearing 40 on first direction can be retrained.
Fig. 5 shows in according to a kind of step actuator of execution mode the stereogram of second shell that bearing is supported from first direction.
With reference to figure 5, nut member 20 is inserted in the magnet 30 and is coupled with the inner ring of bearing 40.
From second direction, installation component 60 is coupled with bearing cap 50, and bearing cap 50 and second shell 120 are coupled.
Bearing 40 is installed between the bearing cap 50 and second shell 120.The second wheel rim part, 122 motions of constraint bearing 40 on first direction of second shell 120.
With reference to figure 5, bearing 40 is partly exposed between the second wheel rim part 122 and magnet 30, and the remainder of bearing 40 blocked by the second wheel rim part 122 of second shell 120, thereby can retrain the motion of bearing 40 on first direction.
Fig. 6 and Fig. 7 are respectively the views that illustrates according to the bearing cap of the step actuator of another execution mode.
Bearing cap 50 is provided with coupling portion 54.Coupling portion 54 radially curves inwardly so that retrain the motion of bearing 40 on first direction from bearing cap 50.Coupling portion 54 can be alignd on the outer ring of bearing 40 by filleting technology.
At Fig. 1 to the step actuator shown in Figure 5, by second shell 120 and bearing cap 50 motions of constraint bearing 40 on first and second direction, different with the step actuator shown in Fig. 1 to Fig. 5, in the step actuator shown in Fig. 6 and Fig. 7, by bearing cap 50 motions of constraint bearing 40 on first and second direction.
If by second shell 120 and bearing cap 50 constraint bearings 40, installation component 60 need not retrain bearing 40 at ad-hoc location so in according to the step actuator of present embodiment.Therefore, installation component 60 can be designed to multiple shape.
In addition, if retrain bearings 40 by bearing cap 50 in according to the step actuator of present embodiment, second shell 120 and installation component 60 need not retrain bearing 40 at ad-hoc location so.Therefore, second shell 120 and installation component can be designed to multiple shape.
The stereogram that Fig. 8 to Figure 12 shows the structure between bearing cap and the installation component and is coupled relation.
Similar to the bearing cap 50 shown in Fig. 6 and Fig. 7, the bearing cap 50 shown in Fig. 8 to Figure 12 is provided with coupling portion 54.Except that the structure of coupling portion 54, the structure of the bearing cap 50 shown in Fig. 8 to Figure 12 is identical with the structure of the bearing cap 50 shown in Fig. 1 to Fig. 5.
With reference to figure 8, bearing cap 50 comprise be coupled wheel rim 51, be coupled pipe 52, locking wheel rim 53, coupling portion 54, supporting member 55, stop part protuberance 56 and first contact member 57.
Be coupled wheel rim 51 and have the annular shape that has preset width, and be coupled to the second wheel rim part 122 of second shell 120.For example, be coupled wheel rim 51 is coupled to second shell 120 by welding the second wheel rim part 122.
Be coupled pipe 52 and extend upward in second party, thereby the inner circumferential surface that is coupled pipe 52 is contacted with the outer ring of bearing 40 from the inner circumferential surface that is coupled wheel rim 51.
Locking wheel rim 53 radially inwardly stretches out with the outer ring with bearing 40 from second end that is coupled pipe 52 and contacts.53 motions of constraint bearing 40 on second direction of locking wheel rim.
As mentioned above, coupling portion 54 motions of constraint bearing 40 on first direction.Coupling portion 54 is crooked vertically with block bearing 40, and its when bearing 40 being plugged between coupling portion 54 and the locking wheel rim 53 towards locking wheel rim 53.
A plurality of supporting members 55 extend upward in second party from the excircle part that is coupled wheel rim 51, separate each other simultaneously.Can form circular dummy line by connecting supporting member 55.
Stop part protuberance 56 extends radially outwardly from supporting member 55.Stop part protuberance 56 comprises the first bent member 56a and the second bent member 56b, and they are along the circumferential direction arranged.The first bent member 56a and the second bent member 56b are bearing on the locking component 64 and locking protuberance 65 of installation component 60, thereby can prevent that installation component 60 from along the circumferential direction rotating when installation component 60 and bearing cap 50 are coupled.
The first bent member 56a and the second bent member 56b can enlarge the contact area of stop part protuberance 56, thereby stop part protuberance 56 can be bearing in securely on locking component 64 and the locking protuberance 65.
First contact member 57 extends radially outwardly from second end of supporting member 55, and contacts to prevent that installation component 60 from axial direction moving with second contact member 67 of installation component 60.
Installation component 60 comprises protuberance 61, socket pipe 63, locking component 64, locking protuberance 65, extends the wheel rim 66 and second contact member 67.
Protuberance 61 and socket pipe 63 form the body of installation component 60.Protuberance 61 support thread members 10 so that screw member 10 can first or second party move upward, and socket pipe 63 is provided for installing the space of bearing 40 and bearing cap 50.Protuberance 61 stretches out from socket pipe 63 on second direction.
First end of socket pipe 63 is inserted into the supporting member 55 of bearing cap 50 and is coupled between the pipe 52.Therefore, the excircle of first end of socket pipe 63 part contacts with the inner circumferential portion of supporting member 55, and the inner circumferential portion of first end of socket pipe 63 contacts with the outer circumference portion branch that is coupled pipe 52.
Extension wheel rim 66 extends radially outwardly from the external peripheral surface of socket pipe 63.Extend that wheel rim 66 has annular shape and towards the first stop part protuberance 56 and first contact member 57 of bearing cap 50.
A plurality of locking components 64 extend upward in first party from the excircle part of extending wheel rim 566, separate each other simultaneously.The inner circumferential portion of locking component 64 is towards the excircle part that is coupled wheel rim 51.
When installation component 60 when locking component 64 is placed on that clockwise direction rotates under the state between the supporting member 55 of bearing cap 50, the first bent member 56a contacts with the circumferential end of locking component 64.Therefore, no longer clockwise direction rotation of installation component 60.
Locking protuberance 65 has elasticity and is formed on the extension wheel rim 66 between the locking component 64.Being shaped as of protuberance 65 of locking has free-ended cantilever, and described free end contacts with the second bent member 56b of stop part protuberance 56.
Just, locking protuberance 65 is placed between the adjacent supporting member 55, and afterwards, when installation component 60 clockwise directions rotate, locking protuberance 65 when stop part protuberance 56 moves and the second bent member 56b of stop part protuberance 56 lock together.
In order to allow to lock protuberance 65 along 56 level and smooth the moving of stop part protuberance, the free end of locking protuberance 65 tilts.
Second contact member 67 extends radially inwardly from first end of locking component 64, and is spaced a predetermined distance from extension wheel rim 66 simultaneously.First contact member 57 is inserted in second contact member 67 and extends between the wheel rim 66.
Installation component 60 is coupled to bearing cap 50 from second direction.Therefore, when installation component 60 is coupled to bearing cap 50, be coupled to first contact member 57 integrally formed with integrally formed second contact member 67 of installation component 60 from first direction, thereby can retrain the motion of installation component 60 on first and second direction with bearing cap 50.
For bearing cap 60 is coupled to installation component 60 securely, with first contact member 57 that second contact member 67 contacts on be formed with embossing 57a.When because the twist-lock member 64 of installation component 60 and locking protuberance 67 when locking together with stop part protuberance 56, embossing 57a is attached to second contact member 67, thus, supports second contact member 67 from first direction.
Hereinafter, will installation component 60 be coupled to the method for bearing cap 50 with reference to figure 9 to Figure 12 explanations.
As shown in Figure 9, the socket pipe 63 of installation component 60 be inserted into the supporting member 55 of bearing cap 50 and be coupled the pipe 52 between, and the locking component 64 of installation component 60 and the locking protuberance 65 be placed between the stop part protuberance 56 of bearing cap 50.
Different with Figure 10, on the axial direction of Fig. 9, first contact member 57 of bearing cap 50 is not overlapping with second contact member 67 of installation component 60.
With reference to figure 9 and Figure 10, if installation component 60 clockwise directions rotate, as shown in figure 11, then locking component 64 contacts with the first bent member 56a, and locking protuberance 65 moves along stop part protuberance 56, so that the free end of locking protuberance 65 contacts with the second bent member 56b.Therefore, installation component 60 can not rotate.
Similar to Figure 12, on the axial direction of Figure 11, first contact member 57 of bearing cap 50 is overlapping with second contact member 67 of installation component 60.Therefore, first contact member 57 contacts with second contact member 67.Because embossing 57a is formed on first contact member 57,, embossing 57a on first direction, promotes second contact member 67 simultaneously so being attached to second contact member 67.Therefore, bearing cap 50 can be coupled to installation component 60 and not motion in axial direction securely.
By behind the free end that lifts locking protuberance 165 along second direction, counterclockwise rotating installation component 60, just can easily remove and install member 60.
Step actuator according to present embodiment comprises: bearing cap 50, and installation component 60 is also supported in the position of its constraint bearing 40; And installation component 60, the linear movement of its guiding and support thread member 10.Therefore, installation component 60 may be made in multiple shape and easily is coupled with bearing cap 50.
In above-mentioned step actuator, when to the first terminal part 135 and 145 power supplies of second terminal part, produce electric field, so that magnet 30 rotates along positive veer or reverse directions according to electric field.
When magnet 30 rotated, the nut member 20 that is coupled with magnet 30 also rotated, thereby the threaded elements 10 of the screw-threaded engagement of its screw thread 11 and nut member 20 is moved upward at first direction or second party according to the rotation direction of magnet 30.
Though execution mode is described with reference to a plurality of illustrated embodiment, should be appreciated that those skilled in the art can make multiple other modification and execution mode will fall into disclosure principle spirit and scope in.
Commercial Application
Step actuator according to present embodiment can be converted into linear movement with rotational motion, so this step actuator need can be applicable to multiple electricity and the mechanical device of line movement.

Claims (20)

1. step actuator comprises:
Shell;
Stator, described stator are installed in the described shell;
Rotor, described rotor radially inwardly is provided with from described stator, described rotor rotation and stretch out from a side of described shell;
Bearing, described Bearing Installation in a side of described shell so that be coupled with described rotor;
Bearing cap, a side of described bearing cap and described shell are coupled to retrain the motion of described bearing;
Screw member, described screw member and described rotor are coupled with the rotation according to described rotor and move linearly; And
Installation component, described installation component are coupled to described bearing cap to support described screw member.
2. step actuator according to claim 1, wherein, the linear movement on first direction and the second direction opposite of described screw member with described first direction.
3. step actuator according to claim 2, wherein, a side of described shell retrains the motion of described bearing on described first direction.
4. step actuator according to claim 2, wherein, described bearing cap retrains the motion of described bearing on described first direction.
5. step actuator according to claim 2, wherein, described bearing cap contacts with described bearing from described second direction and radially outer direction.
6. step actuator according to claim 2, wherein, a side of described shell is fixed in described bearing cap by spot welding or Laser Welding.
7. step actuator according to claim 1, wherein, described installation component retrains the rotation of described screw member.
8. step actuator according to claim 7, wherein, a side of described screw member has D type cross section, and described installation component is formed with D type through hole.
9. step actuator according to claim 1, wherein, described bearing cap comprise be coupled wheel rim, be coupled the pipe and the locking wheel rim, describedly be coupled the side that wheel rim has annular shape and is coupled to described shell, the described pipe that is coupled extends from the described wheel rim that is coupled, and described locking wheel rim radially inwardly stretches out so that contact with the outer ring of described bearing from a described end that is coupled pipe.
10. step actuator according to claim 9, wherein, the described inner circumferential surface that is coupled pipe contacts with the outer ring of described bearing.
11. step actuator according to claim 9, wherein, described bearing cap also comprises from the described wheel rim diameter that is coupled to inwardly stretching out the coupling portion that contacts with the outer ring of described bearing.
12. a step actuator comprises:
Shell;
Stator, described stator are installed in the described shell;
Rotor, described rotor is radially inwardly placed from described stator, described rotor rotation and stretch out from a side of described shell;
Bearing, described Bearing Installation in a side of described shell so that be coupled with described rotor;
Bearing cap, a side of described bearing cap and described shell are coupled to retrain the motion of described bearing;
Screw member, described screw member and described rotor are coupled with according to the rotation of described rotor linear movement on first direction and the second direction opposite with described first direction; And
Installation component, described installation component are coupled to described bearing cap removably to support described screw member.
13. step actuator according to claim 12, wherein, described bearing cap comprise be coupled wheel rim, be coupled the pipe and the locking wheel rim, describedly be coupled the side that wheel rim has annular shape and is coupled to described shell, the described pipe that is coupled extends upward in described second party from the described inner circumferential surface that is coupled wheel rim, and described locking wheel rim radially inwardly stretches out to contact with the outer ring of described bearing from a described end that is coupled pipe.
14. step actuator according to claim 13, wherein, described installation component comprises socket pipe and protuberance, and described socket pipe is installed in described being coupled in the pipe, and described protuberance extends upward to support described screw member in described second party from described socket pipe.
15. step actuator according to claim 14, wherein, described bearing cap comprises the supporting member and first contact member, described supporting member extends upward in described second party from the described excircle part that is coupled wheel rim, described first contact member extends radially outwardly from described supporting member, and, described installation component comprises the extension wheel rim, the locking component and second contact member, described extension wheel rim extends radially outwardly from the external peripheral surface of described socket pipe, described locking component extends upward in described first party from described extension wheel rim, and described second contact member extends radially inwardly from an end of described locking component.
16. step actuator according to claim 15, wherein, described second contact member retrains the motion of described first contact member on described first direction.
17. step actuator according to claim 15, wherein, described first contact member is formed with embossing.
18. step actuator according to claim 15, wherein, described bearing cap comprises the stop part protuberance that extends radially outwardly from described supporting member, and described locking component and described stop part protuberance are arranged in the identical circumferential surface.
19. step actuator according to claim 15, also comprise with the form of cantilever and extending and rubber-like locking protuberance from described extension wheel rim, wherein, described locking protuberance and described locking component separate to retrain the motion in a circumferential direction of described stop part protuberance.
20. step actuator according to claim 19, wherein, described stop part protuberance comprises first bent member and second bent member, described first bent member and second bent member are bent upwards in described first party, described first bent member contacts with described locking component, and described second bent member contacts with described locking protuberance.
CN200880130873.7A 2008-07-28 2008-11-03 Stepping actuator Active CN102160268B (en)

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CN201510205203.9A CN104868691B (en) 2008-07-28 2008-11-03 Step actuator

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CN104868691A (en) 2015-08-26
US20170179787A1 (en) 2017-06-22
CN107546952A (en) 2018-01-05
US8978496B2 (en) 2015-03-17
US10673299B2 (en) 2020-06-02
WO2010013866A1 (en) 2010-02-04
JP2014030350A (en) 2014-02-13
JP6324455B2 (en) 2018-05-16
CN102160268B (en) 2015-05-27
JP6130875B2 (en) 2017-05-17
US11799348B2 (en) 2023-10-24
EP2308156B1 (en) 2020-05-06
US9625016B2 (en) 2017-04-18
JP5454964B2 (en) 2014-03-26
CN107546952B (en) 2020-06-16
US20110132115A1 (en) 2011-06-09
JP2015181339A (en) 2015-10-15
KR101558563B1 (en) 2015-10-08
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JP2011529678A (en) 2011-12-08
CN104868691B (en) 2018-05-25
US20200251953A1 (en) 2020-08-06
EP2308156A1 (en) 2011-04-13
US20140190293A1 (en) 2014-07-10
EP2308156A4 (en) 2014-02-19
JP2016197998A (en) 2016-11-24

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